Public domain
Slope Instability
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
One small section of this image shows boulders that have rolled down the slope of a crater wall. The boulders vary in size, with the largest one approximately 6 meters across. Unlike the boulder in a previous image, this one is not standing on end. We can tell by using the sun angle and shadow length to figure out the height and then comparing that to its other measurements. We can determine the origin of the boulders by tracing their up-slope tracks.
NASA Image and Video Library’s own descriptionCredit lineSlope Instability. NASA/JPL, 2016-07-15. Public domain. ID: PIA20744.
